Systems Engineering and Electronics ›› 2021, Vol. 43 ›› Issue (12): 3667-3674.doi: 10.12305/j.issn.1001-506X.2021.12.30

• Guidance, Navigation and Control • Previous Articles     Next Articles

Energy-optimal three-dimensional path planning for AUV under changing ocean current environment

Yanan LI1, Haibin HUANG1, Liangming CHEN2, Yufei ZHUANG1,*, Xiaoli WANG1   

  1. 1. School of Information Science and Engineering, Harbin Institute of Technology(Weihai), Weihai 264209, China
    2. School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639788, Singapore
  • Received:2020-08-13 Online:2021-11-24 Published:2021-11-30
  • Contact: Yufei ZHUANG

Abstract:

In order to obtain the energy optimal path of autonomous underwater vehicle (AUV) in changing ocean current environment, a three-dimensional energy optimal path planning algorithm for AUV is proposed based on the optimal control theory. Firstly, in order to effectively suppress the influence of ocean current on path planning, ocean current vector is added to AUV kinematics model. Secondly, when the pitch angle and AUV position are known, the energy optimal control law is obtained by using Pontryagin minimum principle. Finally, the initial heading angle, speed and energy consumption are calculated by using the state space theory of linear steady system. In the simulation part, compared with the negative feedback control strategy, it shows that the proposed algorithm can plan the three-dimensional energy optimal path, and can effectively reduce the energy consumption of AUV.

Key words: autonomous underwater vehicle (AUV), energy-optimal path planning, variant ocean currents, optimal control theory

CLC Number: 

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